You can do a number of courses and degrees in Architecture. It depends on how qualified you want to get. You can do a diploma course in Architecture which lasts around 6 months to an year. You can also do a four-year pre-professional degree, such as a BS in Architecture, which will obviously take 4 years. Or if you want to further study you can do a further 2 years masters of Architecture course. Here is a link for full details:
architecture.about.com
architecture.about.com
